Dihexa (N-hexanoic-Tyr-Ile-(6) aminohexanoic amide) is a synthetic peptide derivative of Angiotensin IV. Unlike Ang IV, Dihexa is designed to:
✅ Cross the blood-brain barrier
✅ Be orally bioavailable
✅ Promote cognitive enhancement and neuroprotection in animal studies
HGF/c-Met Activation
Dihexa binds to hepatocyte growth factor (HGF) and activates its receptor c-Met, which supports neuronal growth and survival (PMC3533412).
Synaptogenesis and Neuroplasticity
It promotes formation of dendritic spines and synapses, crucial for memory and learning – outperforming even BDNF in rodent models.
Anti-inflammatory Effects
Studies show Dihexa reduces neuroinflammation markers such as TNF-α and IL-1β while increasing synaptic proteins like synaptophysin (PMC8615599).
PI3K/Akt Pathway Activation
Its cognitive benefits involve PI3K/Akt signaling, which enhances cell survival and growth (PMC8615599).
Dihexa restored memory in APP/PS1 mice, improved Morris Water Maze performance, increased synaptic density, and reduced inflammation. Blocking PI3K signaling nullified these effects, showing its critical pathway (PMC8615599).
Dihexa reversed cognitive deficits induced by scopolamine, restoring memory to near-normal levels (PMC8916541).
A meta-analysis of 32 studies confirmed Ang IV analogues like Dihexa significantly improved cognitive performance in rodents (PubMed 29733881).
Currently, there are no published human trials on Dihexa. All cognitive-enhancing claims are based on animal studies. Potential cancer risk via c-Met activation and long-term safety remain untested in humans.
For educational and research purposes only, you can purchase Dihexa from:
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